Finding the Fourth Proportional to 293,588,875.55, 440,092,424.72 and 137,863,920.54

Step by Step Solution

1. Step 1: Write the proportion equation
   293,588,875.55 : 440,092,424.72 = 137,863,920.54 : x
2. Step 2: Convert to fraction form
   293,588,875.55/440,092,424.72 = 137,863,920.54/x
3. Step 3: Cross multiply
   293,588,875.55x = 440,092,424.72 × 137,863,920.54
4. Step 4: Simplify right side
   293,588,875.55x = 60,672,867,071,164,688
5. Step 5: Solve for x
   x = 60,672,867,071,164,688/293,588,875.55
6. Step 6: Final answer
   x = 206,659,284.89