Finding the Fourth Proportional to 136,152.72, 187,889.71 and 74,897.59

Step by Step Solution

1. Step 1: Write the proportion equation
   136,152.72 : 187,889.71 = 74,897.59 : x
2. Step 2: Convert to fraction form
   136,152.72/187,889.71 = 74,897.59/x
3. Step 3: Cross multiply
   136,152.72x = 187,889.71 × 74,897.59
4. Step 4: Simplify right side
   136,152.72x = 14,072,486,464.80
5. Step 5: Solve for x
   x = 14,072,486,464.80/136,152.72
6. Step 6: Final answer
   x = 103,358.10