Finding the Fourth Proportional to 38,502,730.50, 53,133,768.71 and 21,099,760.62

Step by Step Solution

1. Step 1: Write the proportion equation
   38,502,730.50 : 53,133,768.71 = 21,099,760.62 : x
2. Step 2: Convert to fraction form
   38,502,730.50/53,133,768.71 = 21,099,760.62/x
3. Step 3: Cross multiply
   38,502,730.50x = 53,133,768.71 × 21,099,760.62
4. Step 4: Simplify right side
   38,502,730.50x = 1,121,109,800,513,947.38
5. Step 5: Solve for x
   x = 1,121,109,800,513,947.38/38,502,730.50
6. Step 6: Final answer
   x = 29,117,669.99