Finding the Fourth Proportional to 39,149,495.34, 58,724,833.59 and 13,591,316.76

Step by Step Solution

1. Step 1: Write the proportion equation
   39,149,495.34 : 58,724,833.59 = 13,591,316.76 : x
2. Step 2: Convert to fraction form
   39,149,495.34/58,724,833.59 = 13,591,316.76/x
3. Step 3: Cross multiply
   39,149,495.34x = 58,724,833.59 × 13,591,316.76
4. Step 4: Simplify right side
   39,149,495.34x = 798,147,814,999,978
5. Step 5: Solve for x
   x = 798,147,814,999,978/39,149,495.34
6. Step 6: Final answer
   x = 20,387,180.17