Finding the Fourth Proportional to 115,060.10, 158,779.98 and 111,664.78

Step by Step Solution

1. Step 1: Write the proportion equation
   115,060.10 : 158,779.98 = 111,664.78 : x
2. Step 2: Convert to fraction form
   115,060.10/158,779.98 = 111,664.78/x
3. Step 3: Cross multiply
   115,060.10x = 158,779.98 × 111,664.78
4. Step 4: Simplify right side
   115,060.10x = 17,730,131,535.10
5. Step 5: Solve for x
   x = 17,730,131,535.10/115,060.10
6. Step 6: Final answer
   x = 154,094.53