Finding the Fourth Proportional to 156,064.68, 215,367.71 and 84,443.13

Step by Step Solution

1. Step 1: Write the proportion equation
   156,064.68 : 215,367.71 = 84,443.13 : x
2. Step 2: Convert to fraction form
   156,064.68/215,367.71 = 84,443.13/x
3. Step 3: Cross multiply
   156,064.68x = 215,367.71 × 84,443.13
4. Step 4: Simplify right side
   156,064.68x = 18,186,323,111.12
5. Step 5: Solve for x
   x = 18,186,323,111.12/156,064.68
6. Step 6: Final answer
   x = 116,530.68