Finding the Fourth Proportional to 156,094.16, 215,402.46 and 91,554.56

Step by Step Solution

1. Step 1: Write the proportion equation
   156,094.16 : 215,402.46 = 91,554.56 : x
2. Step 2: Convert to fraction form
   156,094.16/215,402.46 = 91,554.56/x
3. Step 3: Cross multiply
   156,094.16x = 215,402.46 × 91,554.56
4. Step 4: Simplify right side
   156,094.16x = 19,721,077,448.22
5. Step 5: Solve for x
   x = 19,721,077,448.22/156,094.16
6. Step 6: Final answer
   x = 126,340.91