Finding the Fourth Proportional to 28,389,667.50, 42,584,842.52 and 7,918,141.01

Step by Step Solution

1. Step 1: Write the proportion equation
   28,389,667.50 : 42,584,842.52 = 7,918,141.01 : x
2. Step 2: Convert to fraction form
   28,389,667.50/42,584,842.52 = 7,918,141.01/x
3. Step 3: Cross multiply
   28,389,667.50x = 42,584,842.52 × 7,918,141.01
4. Step 4: Simplify right side
   28,389,667.50x = 337,192,787,709,488.81
5. Step 5: Solve for x
   x = 337,192,787,709,488.81/28,389,667.50
6. Step 6: Final answer
   x = 11,877,306.69