Finding the Fourth Proportional to 156,048.10, 233,676.15 and 85,848.10

Step by Step Solution

1. Step 1: Write the proportion equation
   156,048.10 : 233,676.15 = 85,848.10 : x
2. Step 2: Convert to fraction form
   156,048.10/233,676.15 = 85,848.10/x
3. Step 3: Cross multiply
   156,048.10x = 233,676.15 × 85,848.10
4. Step 4: Simplify right side
   156,048.10x = 20,060,653,492.82
5. Step 5: Solve for x
   x = 20,060,653,492.82/156,048.10
6. Step 6: Final answer
   x = 128,554.30