Finding the Fourth Proportional to 114,091.61, 157,257.72 and 85,748.09

Step by Step Solution

1. Step 1: Write the proportion equation
   114,091.61 : 157,257.72 = 85,748.09 : x
2. Step 2: Convert to fraction form
   114,091.61/157,257.72 = 85,748.09/x
3. Step 3: Cross multiply
   114,091.61x = 157,257.72 × 85,748.09
4. Step 4: Simplify right side
   114,091.61x = 13,484,548,341.47
5. Step 5: Solve for x
   x = 13,484,548,341.47/114,091.61
6. Step 6: Final answer
   x = 118,190.54