Finding the Fourth Proportional to 38,515,730.24, 53,152,349.91 and 20,875,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   38,515,730.24 : 53,152,349.91 = 20,875,196.18 : x
2. Step 2: Convert to fraction form
   38,515,730.24/53,152,349.91 = 20,875,196.18/x
3. Step 3: Cross multiply
   38,515,730.24x = 53,152,349.91 × 20,875,196.18
4. Step 4: Simplify right side
   38,515,730.24x = 1,109,565,731,799,255.25
5. Step 5: Solve for x
   x = 1,109,565,731,799,255.25/38,515,730.24
6. Step 6: Final answer
   x = 28,808,118.78