Finding the Fourth Proportional to 72,622.83, 99,987.82 and 61,264.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,622.83 : 99,987.82 = 61,264.10 : x
2. Step 2: Convert to fraction form
   72,622.83/99,987.82 = 61,264.10/x
3. Step 3: Cross multiply
   72,622.83x = 99,987.82 × 61,264.10
4. Step 4: Simplify right side
   72,622.83x = 6,125,663,337.64
5. Step 5: Solve for x
   x = 6,125,663,337.64/72,622.83
6. Step 6: Final answer
   x = 84,349.01