Finding the Fourth Proportional to 69,916.30, 96,541.32 and 56,997.58

Step by Step Solution

1. Step 1: Write the proportion equation
   69,916.30 : 96,541.32 = 56,997.58 : x
2. Step 2: Convert to fraction form
   69,916.30/96,541.32 = 56,997.58/x
3. Step 3: Cross multiply
   69,916.30x = 96,541.32 × 56,997.58
4. Step 4: Simplify right side
   69,916.30x = 5,502,621,610.01
5. Step 5: Solve for x
   x = 5,502,621,610.01/69,916.30
6. Step 6: Final answer
   x = 78,702.99