Finding the Fourth Proportional to 140,014,362.09, 193,219,854.71 and 77,290,496.49

Step by Step Solution

1. Step 1: Write the proportion equation
   140,014,362.09 : 193,219,854.71 = 77,290,496.49 : x
2. Step 2: Convert to fraction form
   140,014,362.09/193,219,854.71 = 77,290,496.49/x
3. Step 3: Cross multiply
   140,014,362.09x = 193,219,854.71 × 77,290,496.49
4. Step 4: Simplify right side
   140,014,362.09x = 14,934,058,501,875,112
5. Step 5: Solve for x
   x = 14,934,058,501,875,112/140,014,362.09
6. Step 6: Final answer
   x = 106,660,904.49