Finding the Fourth Proportional to 156,594.32, 216,100.72 and 84,974.34

Step by Step Solution

1. Step 1: Write the proportion equation
   156,594.32 : 216,100.72 = 84,974.34 : x
2. Step 2: Convert to fraction form
   156,594.32/216,100.72 = 84,974.34/x
3. Step 3: Cross multiply
   156,594.32x = 216,100.72 × 84,974.34
4. Step 4: Simplify right side
   156,594.32x = 18,363,016,055.52
5. Step 5: Solve for x
   x = 18,363,016,055.52/156,594.32
6. Step 6: Final answer
   x = 117,264.89