Finding the Fourth Proportional to 137,109.86, 205,669.34 and 47,151.69

Step by Step Solution

1. Step 1: Write the proportion equation
   137,109.86 : 205,669.34 = 47,151.69 : x
2. Step 2: Convert to fraction form
   137,109.86/205,669.34 = 47,151.69/x
3. Step 3: Cross multiply
   137,109.86x = 205,669.34 × 47,151.69
4. Step 4: Simplify right side
   137,109.86x = 9,697,656,051.72
5. Step 5: Solve for x
   x = 9,697,656,051.72/137,109.86
6. Step 6: Final answer
   x = 70,729.09