Finding the Fourth Proportional to 72,590,615.48, 108,901,866.90 and 21,468,648.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,590,615.48 : 108,901,866.90 = 21,468,648.80 : x
2. Step 2: Convert to fraction form
   72,590,615.48/108,901,866.90 = 21,468,648.80/x
3. Step 3: Cross multiply
   72,590,615.48x = 108,901,866.90 × 21,468,648.80
4. Step 4: Simplify right side
   72,590,615.48x = 2,337,975,934,140,445
5. Step 5: Solve for x
   x = 2,337,975,934,140,445/72,590,615.48
6. Step 6: Final answer
   x = 32,207,688.54