Finding the Fourth Proportional to 900,334,314.72, 1,242,434,669.22 and 498,465,973.98

Step by Step Solution

1. Step 1: Write the proportion equation
   900,334,314.72 : 1,242,434,669.22 = 498,465,973.98 : x
2. Step 2: Convert to fraction form
   900,334,314.72/1,242,434,669.22 = 498,465,973.98/x
3. Step 3: Cross multiply
   900,334,314.72x = 1,242,434,669.22 × 498,465,973.98
4. Step 4: Simplify right side
   900,334,314.72x = 619,311,407,499,266,432
5. Step 5: Solve for x
   x = 619,311,407,499,266,432/900,334,314.72
6. Step 6: Final answer
   x = 687,868,270.01