Finding the Fourth Proportional to 38,357,789.86, 52,946,364.72 and 30,531,657.79

Step by Step Solution

1. Step 1: Write the proportion equation
   38,357,789.86 : 52,946,364.72 = 30,531,657.79 : x
2. Step 2: Convert to fraction form
   38,357,789.86/52,946,364.72 = 30,531,657.79/x
3. Step 3: Cross multiply
   38,357,789.86x = 52,946,364.72 × 30,531,657.79
4. Step 4: Simplify right side
   38,357,789.86x = 1,616,540,288,855,569
5. Step 5: Solve for x
   x = 1,616,540,288,855,569/38,357,789.86
6. Step 6: Final answer
   x = 42,143,728.69