Finding the Fourth Proportional to 51,209,104.77, 70,748,139.15 and 42,936,339.87

Step by Step Solution

1. Step 1: Write the proportion equation
   51,209,104.77 : 70,748,139.15 = 42,936,339.87 : x
2. Step 2: Convert to fraction form
   51,209,104.77/70,748,139.15 = 42,936,339.87/x
3. Step 3: Cross multiply
   51,209,104.77x = 70,748,139.15 × 42,936,339.87
4. Step 4: Simplify right side
   51,209,104.77x = 3,037,666,147,714,453
5. Step 5: Solve for x
   x = 3,037,666,147,714,453/51,209,104.77
6. Step 6: Final answer
   x = 59,318,868.42