Finding the Fourth Proportional to 71,645, 98,844.90 and 42,973.95

Step by Step Solution

1. Step 1: Write the proportion equation
   71,645 : 98,844.90 = 42,973.95 : x
2. Step 2: Convert to fraction form
   71,645/98,844.90 = 42,973.95/x
3. Step 3: Cross multiply
   71,645x = 98,844.90 × 42,973.95
4. Step 4: Simplify right side
   71,645x = 4,247,755,790.36
5. Step 5: Solve for x
   x = 4,247,755,790.36/71,645
6. Step 6: Final answer
   x = 59,288.94