Finding the Fourth Proportional to 99,632.03, 137,485.33 and 56,031.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,632.03 : 137,485.33 = 56,031.10 : x
2. Step 2: Convert to fraction form
   99,632.03/137,485.33 = 56,031.10/x
3. Step 3: Cross multiply
   99,632.03x = 137,485.33 × 56,031.10
4. Step 4: Simplify right side
   99,632.03x = 7,703,454,273.76
5. Step 5: Solve for x
   x = 7,703,454,273.76/99,632.03
6. Step 6: Final answer
   x = 77,319.05