Finding the Fourth Proportional to 42,303,707.10, 63,455,560.65 and 12,011,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,303,707.10 : 63,455,560.65 = 12,011,570.10 : x
2. Step 2: Convert to fraction form
   42,303,707.10/63,455,560.65 = 12,011,570.10/x
3. Step 3: Cross multiply
   42,303,707.10x = 63,455,560.65 × 12,011,570.10
4. Step 4: Simplify right side
   42,303,707.10x = 762,200,914,982,276.50
5. Step 5: Solve for x
   x = 762,200,914,982,276.50/42,303,707.10
6. Step 6: Final answer
   x = 18,017,355.15