Finding the Fourth Proportional to 224,657.78, 336,985.71 and 91,508.34

Step by Step Solution

1. Step 1: Write the proportion equation
   224,657.78 : 336,985.71 = 91,508.34 : x
2. Step 2: Convert to fraction form
   224,657.78/336,985.71 = 91,508.34/x
3. Step 3: Cross multiply
   224,657.78x = 336,985.71 × 91,508.34
4. Step 4: Simplify right side
   224,657.78x = 30,837,002,925.82
5. Step 5: Solve for x
   x = 30,837,002,925.82/224,657.78
6. Step 6: Final answer
   x = 137,262.12