Finding the Fourth Proportional to 52,478,513.12, 78,740,504.76 and 28,189,101.44

Step by Step Solution

1. Step 1: Write the proportion equation
   52,478,513.12 : 78,740,504.76 = 28,189,101.44 : x
2. Step 2: Convert to fraction form
   52,478,513.12/78,740,504.76 = 28,189,101.44/x
3. Step 3: Cross multiply
   52,478,513.12x = 78,740,504.76 × 28,189,101.44
4. Step 4: Simplify right side
   52,478,513.12x = 2,219,624,076,116,443
5. Step 5: Solve for x
   x = 2,219,624,076,116,443/52,478,513.12
6. Step 6: Final answer
   x = 42,295,864.42