Finding the Fourth Proportional to 152,941.31, 229,042.84 and 91,976.26

Step by Step Solution

1. Step 1: Write the proportion equation
   152,941.31 : 229,042.84 = 91,976.26 : x
2. Step 2: Convert to fraction form
   152,941.31/229,042.84 = 91,976.26/x
3. Step 3: Cross multiply
   152,941.31x = 229,042.84 × 91,976.26
4. Step 4: Simplify right side
   152,941.31x = 21,066,503,602.34
5. Step 5: Solve for x
   x = 21,066,503,602.34/152,941.31
6. Step 6: Final answer
   x = 137,742.40