Finding the Fourth Proportional to 156,071.46, 215,164.18 and 98,682.10

Step by Step Solution

1. Step 1: Write the proportion equation
   156,071.46 : 215,164.18 = 98,682.10 : x
2. Step 2: Convert to fraction form
   156,071.46/215,164.18 = 98,682.10/x
3. Step 3: Cross multiply
   156,071.46x = 215,164.18 × 98,682.10
4. Step 4: Simplify right side
   156,071.46x = 21,232,853,127.18
5. Step 5: Solve for x
   x = 21,232,853,127.18/156,071.46
6. Step 6: Final answer
   x = 136,045.71