Finding the Fourth Proportional to 156,024.89, 215,314.17 and 84,404.75

Step by Step Solution

1. Step 1: Write the proportion equation
   156,024.89 : 215,314.17 = 84,404.75 : x
2. Step 2: Convert to fraction form
   156,024.89/215,314.17 = 84,404.75/x
3. Step 3: Cross multiply
   156,024.89x = 215,314.17 × 84,404.75
4. Step 4: Simplify right side
   156,024.89x = 18,173,538,690.31
5. Step 5: Solve for x
   x = 18,173,538,690.31/156,024.89
6. Step 6: Final answer
   x = 116,478.46